一、引言在去年技术革命中我院附属工厂根据五系503教研组之设计试制成功首批“E”面及“H”面90°转弯波导。为了确定其性能检定设计的效果,作为今后成批生产的依据,我们在503教研组的老师的指导与帮助下,对首批产品进行了比较详细的测试,并对加工过程提出了一些意见。 I. INTRODUCTION In the technical revolution last year, the affiliated factory of our hospital successfully produced the first batch of “E” face and “H” face 90 ° turn waveguide according to the design trial of the Five Department 503 Teaching and Research Section. In order to determine the effect of its performance verification design, as the basis for mass production in the future, we conducted a more detailed test of the first batch of products under the guidance and help of the teacher of 503 teaching and research group, and put forward some opinions on the processing.